HoneyLabs

UDP traffic

Datagrams matching asn:51115 sent to HoneyLabs sensors over UDP in the last 7 days. DNS questions and QUIC client fingerprints are decoded on the sensor. Other datagrams are kept as their first bytes and labelled by protocol where it can be recognised.

A UDP source address can be forged, so each address listed here either sent the traffic or was impersonated by whoever did. UDP traffic is kept out of verdicts, feeds, watchlists and alerts.

117

Datagrams

1

Source addresses

1

Networks

1

Countries

13

Destination ports

Traffic by type

Service queries

70 datagrams from 1 source

Requests a service answers without a handshake. Scanners send them to find open DNS, NTP, SNMP or SSDP servers, which are also the servers reflection attacks abuse.

Latest DNS datagram, to 53/udp

DNS query ANY com

payload bytes
00000000  48 53 01 00 00 01 00 00  00 00 00 01 03 63 6f 6d  |HS...........com|
00000010  00 00 ff 00 01 00 00 29  10 00 00 00 00 00 00 00  |.......)........|

Unrecognised

47 datagrams from 1 source

Datagrams no decoder recognised. Their first bytes are kept.

Latest Unrecognised datagram, to 427/udp

· ·en·default

payload bytes
00000000  02 09 00 00 1d 00 00 00  00 00 12 04 00 02 65 6e  |..............en|
00000010  00 00 ff ff 00 07 64 65  66 61 75 6c 74           |......default|

Amplification checks

Probes for services that answer a small request with a much larger reply, the property reflection attacks rely on.

ServicePortDatagramsSourcesFactor
DNS53/udp12128 to 54
SNMPv2161/udp1216.3
SSDP1900/udp12130.8
NTP123/udp91556.9
NetBIOS137/udp913.8
Portmap111/udp817 to 28
RIPv1520/udp81131.24
Memcached11211/udp8110,000 to 51,000
CLDAP389/udp7156 to 70

The factor is how many bytes a reachable server can send back for each byte it receives, as published by CISA in alert TA14-017A.

Destination ports

DNS questions

DNS record types

Networks

Countries

Source addresses (unverified)

AddressNetworkCcSendsDatagramsLast seen (UTC)
185.94.111.1AS51115 HLL LLCRUUnrecognised1172026-10-11 04:00

Latest datagrams